Monosodium glutamate (MSG) known as sodium glutamate and E621. MSG is white or off-white crystalline powder with a slight odor. It's found naturally in tomatoes and cheeses, and is added to many processed foods, including canned vegetables, soups, deli meats, and fast food.
| Appearance | A white, crystalline powder or solid at room temperature |
| Odor | Odorless or has a slight peptone-like odor |
| Taste | Slightly salty and bitter, or has an umami flavor |
| Solubility | Highly soluble in water, with a solubility of 740 grams per liter |
| Density | 26.2 grams per cubic centimeter when saturated in water at 20°C |
| Melting point | 225–236°C |
| Boiling point | 225°C |
| Molecular mass | 169.11 grams per mole |
| pH | 6.7–7.2 |
The FDA considers MSG to be "generally recognized as safe" (GRAS), but some studies have questioned its long-term safety. For example, preclinical studies have found that MSG can cause: Cardiovascular toxicity, Increased oxidative stress in cardiac tissue, Increased levels of heart disease biomarkers, and Hepatotoxicity
Synonyms :
